/**
 * Copyright 2016 Keepsafe Software, Inc.
 * <p>
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * <p>
 * http://www.apache.org/licenses/LICENSE-2.0
 * <p>
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package ui.apptour.taptargetview;

import android.graphics.Bitmap;
import android.graphics.Canvas;
import android.graphics.Rect;
import android.graphics.drawable.BitmapDrawable;
import android.support.annotation.Nullable;
import android.view.View;

class ViewTapTarget extends TapTarget {
  final View view;

  ViewTapTarget(View view, CharSequence title, @Nullable CharSequence description, @Nullable CharSequence buttonText) {
    super(title, description,buttonText);
    if (view == null) {
      throw new IllegalArgumentException("Given null view to target");
    }
    this.view = view;
  }

  @Override
  public void onReady(final Runnable runnable) {
    ViewUtil.onLaidOut(view, new Runnable() {
      @Override
      public void run() {
        // Cache bounds
        final int[] location = new int[2];
        view.getLocationOnScreen(location);
        bounds = new Rect(location[0], location[1],
            location[0] + view.getWidth(), location[1] + view.getHeight());

        if (icon == null && view.getWidth() > 0 && view.getHeight() > 0) {
          final Bitmap viewBitmap = Bitmap.createBitmap(view.getWidth(), view.getHeight(), Bitmap.Config.ARGB_8888);
          final Canvas canvas = new Canvas(viewBitmap);
          view.draw(canvas);
          icon = new BitmapDrawable(view.getContext().getResources(), viewBitmap);
          icon.setBounds(0, 0, icon.getIntrinsicWidth(), icon.getIntrinsicHeight());
        }

        runnable.run();
      }
    });
  }
}